TY - JOUR
T1 - Adsorption of Metanil Yellow on Chemically-Activated Carbon in a Packed-Bed Column: Effect of Activation Reagent
AU - Isiuku, O.B. AU - Horsfall, M. AU - Spiff, A.I.
JO - Journal of Engineering and Applied Sciences
VL - 8
IS - 9
SP - 282
EP - 289
PY - 2013
DA - 2001/08/19
SN - 1816-949x
DO - jeasci.2013.282.289
UR - https://makhillpublications.co/view-article.php?doi=jeasci.2013.282.289
KW - Column adsorption
KW -metanil yellow
KW -activated carbon
KW -adsorption models
KW -Nigeria
AB - The aim of this study was to investigate the ability of H3PO4
and NaOH-activated carbons derived from cassava (Manihot esculenta) peels
to remove metanil yellow dye from aqueous solution in fixed beds. The effects
of initial dye concentration, bed height and flow rate at natural pH on the
breakthrough characteristics were determined. The highest experimental values
for the equilibrium adsorption capacities were 19.216 and 4.118 mg g-1
for H3PO4 and NaOH-activated carbon, respectively, at
initial dye concentrations 50,10 mg L-1 respectively, flow rate 13.3
mL min-1, bed height 10 cm, natural pH and temperature of 28-31°C.
Total dye removal of 12.04 and 12.90% for H3PO4 and NaOH-activated
carbons respectively at initial dye concentrations 50 and 10 mg L-1,
respectively bed height 20 cm, flow rate 13.3 m L-1 min, temperature
28-31°C and natural pH were obtained. Experimental results were fitted into
the Thomas and Yoon-Nelson Models. The maximum adsorption capacities with respect
to the Thomas model (%) were 118.35 mg g-1 for H3PO4-activated
carbon and 118.061 mg g-1 for NaOH-activated carbon. For the Yoon-Nelson
Model, the maximum adsorption capacities were 1186.959 and 890.359 mg g-1,
respectively for the H3PO4 and NaOH-activated carbons.
ER -